Installation for sequential loading of bars of material into a machining center

An installation for sequential loading of bars of material in a machining center, the installation comprising:

• a frame including at least one first arcuate bearing surface and at least one second arcuate bearing surface, the first and second arcuate bearing surfaces connected at a first station;
• a first device including a first elongated body having a longitudinal axis, a peripheral first face engaging the at least one first arcuate bearing surface, and a plurality of first longitudinal cavities, each first longitudinal cavity sized to accommodate a bar and including a first opening made in said first face, the first device being rotatable about its longitudinal axis such that each first longitudinal cavity moves from a first position for receiving a bar to a second position at the first station, the at least one first arcuate bearing surface occluding each first opening between the first position and the second position such that the bar in each first longitudinal cavity is delivered to the first station;
• a second device including a second elongated body having a longitudinal axis, a peripheral second face engaging the at least one second arcuate bearing surface, and at least one second longitudinal cavity sized to accommodate a bar and including a second opening made in said second face, the second device being rotatable about its longitudinal axis such that each second longitudinal cavity moves from a first position at the first station for receiving a bar from a first longitudinal cavity of the first elongated body, to a second position in which the at least one second arcuate bearing surface occludes the second opening such that the bar is guided in rotation and in translation;
• and
• a third device operable to translate a bar contained in the second cavity along first and second opposite directions, the first direction corresponding to a direction of insertion of the bar in a machining center and the second direction enabling withdrawal from the machine tool a segment of the bar which has not been used by the machining center.